Hahnemuhle 300gsm FineArt Baryta Satin Photo Paper, 8.5x11, 0.37mm Thickness, 10 Sheets Test Conditions: 23 deg. C (73.4 deg. F) / 50% R.H. Thickness: 0.37mm / 0.01" Whiteness: 92% Opacity: 98% pH-Value total: 8.5